master 7685227: Make string-clean-whitespace work on non-ASCII whitespace, too

[Lars Ingebrigtsen]

branch: master
commit 768522750ddbf68eb86b336fb41df9ec2fae6988
Author: Lars Ingebrigtsen <larsi@gnus.org>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    Make string-clean-whitespace work on non-ASCII whitespace, too
    
    * lisp/emacs-lisp/subr-x.el (string-clean-whitespace): Also clean
    up non-ASCII whitespace.
---
 lisp/emacs-lisp/subr-x.el | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lisp/emacs-lisp/subr-x.el b/lisp/emacs-lisp/subr-x.el
index 80d4cb9..4d1a73a 100644
--- a/lisp/emacs-lisp/subr-x.el
+++ b/lisp/emacs-lisp/subr-x.el
@@ -269,7 +269,9 @@ carriage return."
 All sequences of whitespaces in STRING are collapsed into a
 single space character, and leading/trailing whitespace is
 removed."
-  (string-trim (replace-regexp-in-string "[ \t\n\r]+" " " string)))
+  (let ((blank "[[:blank:]\n]+"))
+    (string-trim (replace-regexp-in-string blank " " string)
+                 blank blank)))
 
 (defun string-fill (string length)
   "Try to word-wrap STRING so that no lines are longer than LENGTH.